About the Role

We are seeking a highly experienced and hands-on Senior Network and Security Engineer to join A complex enterprise IT environment. This is a crucial role focused on securing our infrastructure through expert design, implementation, and management of next-generation firewall, load balancing, and routing technologies.

You will be responsible for translating complex business requirements into robust, compliant technical security solutions, with a strong focus on using automation to drive efficiency. This role demands a senior engineer who is equally comfortable writing low-level design documents and executing hands-on configuration changes in a fast-paced environment.

Key Responsibilities

• Security Architecture & Design: Develop and document low-level designs for enterprise security architecture, ensuring compliance with internal standards and external regulations.

• Next-Gen Firewall Management: Perform hands-on configuration, build, routing integration, and security policy analysis on Juniper SRX and Fortinet (FortiGate) firewalls.

• Load Balancing & Application Delivery: Design, build, and implement solutions using F5 LTM, GTM, and APM to ensure high availability and secure application access.

• Advanced Routing & Switching: Configure and manage enterprise switching and routing protocols, including BGP, OSPF, VXLAN, VTP, and BFD.

• Security Automation: Leverage scripting skills (Python, JSON, Ansible) to automate configuration changes, policy deployment, and compliance checks.

• Monitoring & Compliance: Configure, implement, and analyze IDS/IPS policies. Utilise logging and monitoring platforms (Splunk, Elastic, Netscout, SolarWinds) for event analysis and proactive security posture.

• Stakeholder Engagement: Act as a technical subject matter expert, converting complex business requirements into actionable technical designs and presenting solutions to internal teams.

Qualifications & Experience

Essential Requirements:

• Minimum 8+ years of hands-on experience in complex, large-scale enterprise IT environments.

• Strong, recent, and demonstrable experience with both Juniper SRX and FortiGate firewall platforms.

• Expertise in F5 Load Balancing across LTM, GTM, and APM modules.

• Deep knowledge of IP routing protocols, specifically BGP and OSPF.

• Proven ability to develop and use Python/Ansible for network and security automation.

• Excellent problem-solving skills and a strong commitment to collaboration and teamwork.

• Ability to manage pressure situations and prioritise delivery across multiple concurrent tasks.

Desirable Qualifications:

• Relevant industry certifications (e.g., Fortinet NSE 7/8, JNCIE-SEC, CISSP).

• Experience with cloud security concepts and architecture (e.g., AWS, Azure).

• Previous experience working within the financial services or a highly regulated industry

At Randstad, we are passionate about providing equal employment opportunities and embracing diversity to the benefit of all. We actively encourage applications from any background.